<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域 -->
    <el-card class="box-card">
      <!-- 搜索与添加区域 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input
            v-model="queryInfo.query"
            placeholder="请输入内容"
            clearable
            @clear="getUserList"
          >
            <el-button slot="append" icon="el-icon-search" @click="getUserList">
            </el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true"
            >添加用户</el-button
          >
        </el-col>
      </el-row>
      <!-- 表格区域 -->
     <el-row >
        <el-table :data="userlist" border stripe height="70vh">
        <!-- 索引列↓ -->
        <el-table-column type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <!--template定义一个作用域插槽，slot-scope="scope"接收当前作用域数据 -->
            <el-switch
              v-model="scope.row.mg_state"
              @change="userStateChange(scope.row)"
            >
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click=showEditDialog(scope.row.id)
            ></el-button>
            <!-- 删除按钮 -->
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="removeUserById(scope.row.id,scope.row.username)"
            ></el-button>
            <!-- 分配角色按钮 -->
            <el-tooltip
              effect="dark"
              content="分配角色"
              placement="top"
              :enterable="false"
            >
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="mini"
                @click="setRole(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
     </el-row>
      <!-- 分页区域 -->
      <el-row>
        <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
      </el-row>
    </el-card>

    <!-- 添加用户的对话框 -->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisible"
      width="50%"
      @close="addDialogClosed"
    >
      <!-- 内容主体区 -->
      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="addFormRef"
        label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 修改用户 -->
    <el-dialog
      title="修改用户"
      :visible.sync="editDialogVisible"
      width="50%"
      @close="editDialogClosed">
      <!-- 内容主体区 -->
      <el-form  :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
        <el-form-item label="用户名" >
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo()"
          >确 定</el-button
        >
      </span>
    </el-dialog>

    <!-- 角色分配 -->
    <el-dialog
      title="分配角色"
      :visible.sync="setRoleDialogVisible"
      width="30%" @close="setRoleDialogClosed">
      <div>
        <p>当前的用户：{{userInfo.username}}</p>
        <p>当前的角色：{{userInfo.role_name}}</p>
        <p>
          分配角色：
          <el-select v-model="selectedRoleId" placeholder="请选择">
            <el-option
              v-for="item in roleslist"
              :key="item.id"
              :label="item.roleName"
              :value="item.id">
            </el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo()">确 定</el-button>
      </span>
    </el-dialog>

  </div>
</template>

<script>
export default {
  data() {
    //验证邮箱的规则
    var checkEmail = (rules, value, callback) => {
      const regEmail = /^[A-Za-z0-9\u4e00-\u9fa5]+@[a-zA-Z0-9_-]+(\.[a-zA-Z0-9_-]+)+$/
      if (regEmail.test(value)) {
        //合法邮箱
        return callback()
      }
      callback(new Error('请输入合法的邮箱'))
    }
    //验证手机号的规则
    var chenckMobile = (rules, value, callback) => {
      const regMobile = /^([1]\d{10}|([\(（]?0[0-9]{2,3}[）\)]?[-]?)?([2-9][0-9]{6,7})+(\-[0-9]{1,4})?)$/
      if (regMobile.test(value)) {
        //合法
        return callback()
      }
      callback(new Error('请输入合法的手机号'))
    }
    return {
      //获取用户列表的参数对象
      queryInfo: {
        query: '',
        //当前页数
        pagenum: 1,
        //当前每页显示多少数据
        pagesize: 2
      },
      userlist: [],
      total: 0,
      //控制添加用户对话框的显示与隐藏
      addDialogVisible: false,
      //添加用户的表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      //添加表单的验证规则对象
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          {
            min: 3,
            max: 10,
            message: '用户名的长度在3~10个字之间',
            trigger: 'change'
          }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          {
            min: 6,
            max: 12,
            message: '密码的长度在6~12个字之间',
            trigger: 'change'
          }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: chenckMobile, trigger: 'blur' }
        ]
      },

      //控制编辑用户对话框的显示与隐藏
      editDialogVisible: false,
      //查询到用户信息对象保存
      editForm:{},
      //修改表单的验证规则对象
      editFormRules:{
         email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'change' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: chenckMobile, trigger: 'change' }
        ]
      },
      //控制分配角色对话框的显示与隐藏
      setRoleDialogVisible: false,
      //需要被分配角色的用户信息
      userInfo:{},
      //所有角色的数据列表
      roleslist:[],
      //已选择的角色ID值
      selectedRoleId:''
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    async getUserList() {
      const { data: res } = await this.$http.get('users', {
        params: this.queryInfo
      })
      if (res.meta.status !== 200) {
        return this.$message.error('获取用户列表失败')
      }
      this.userlist = res.data.users
      this.total = res.data.total
      console.log(res)
    },
    //监听pagesize改变的事件
    handleSizeChange(newSize) {
      //console.log(newSize)
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    //监听页码值改变的事件
    handleCurrentChange(newPage) {
      //console.log(newPage)
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    //监听switch 开关状态的改变
    async userStateChange(userinfo) {
      //console.log(userinfo)
      /* 
      //错误使用👇
      const {data:res} = await this.$http.put('users/:uId/state/:type',{
         uid:(userinfo.id),
         type:(userinfo.mg_state)
      })
      */
      const { data: res } = await this.$http.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
      )
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('更新用户状态失败')
      }
      this.$message.success('更新用户状态成功')
    },
    //监听添加用户对话框的关闭
    addDialogClosed() {
      this.$refs.addFormRef.resetFields()
    },
    //点击按钮添加新用户
    addUser() {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return
        //console.log(valid)
        //可以发起添加用户的网络请求
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201) return this.$message.error('添加用户失败')
        this.$message.success('添加用户成功')
        //隐藏添加用户的对话框
        this.addDialogVisible = false
        //刷新数据
        this.getUserList()
      })
    },
    //展示编辑用户的对话框
    async showEditDialog(id) {
      // console.log(id)
      const {data:res} = await this.$http.get('users/' + id )
      if(res.meta.status !== 200){
        return this.$message.error('查询用户信息失败')
      }
      this.editForm = res.data
      
      this.editDialogVisible = true
    },
    //监听编辑用户对话框的关闭
    editDialogClosed(){
       this.$refs.editFormRef.resetFields()
    },
    //修改用户信息并提交
    editUserInfo(id){
      this.$refs.editFormRef.validate(async valid => {
        if(!valid) return;
        //发起修改用户信息的数据请求
        const { data:res } = await this.$http.put('users/'+ this.editForm.id ,{
          email:this.editForm.email,
          mobile:this.editForm.mobile
        })
        if(res.meta.status !== 200){
          return this.$message.error('数据编辑失败')
        }
        this.editDialogVisible = false
        this.getUserList()
        this.$message.success('数据编辑成功')
      })
    },
    //删除用户
    removeUserById(id,name){
      console.log(id)
      this.$confirm('此操作将永久删除'+name+'用户, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).then(async () => {
          const { data: res} = await this.$http.delete('users/'+id)
          if(res.meta.status !== 200){
            return this.$message.error('删除失败')
          }
          this.getUserList()
          this.$message.success('删除成功')
        }).catch(() => {
          this.$message({
            type: 'info',
            message: '已取消删除'
          });       
        });
    },
    //展示分配角色的对话框
    async setRole(userInfo){
      this.userInfo = userInfo
      //在展示对话框之前获取所有的角色列表
      const {data:res} = await this.$http.get('roles')
      if(res.meta.status !== 200){
        return this.$message.error('获取角色列表失败')
      }
      this.roleslist = res.data
      this.setRoleDialogVisible = true
    },
    //点击按钮，分配角色
    async saveRoleInfo(id){
      console.log(id)
      if(!this.selectedRoleId){
        return this.$message.error('请选择要分配的角色')
      }
      const {data:res} = await this.$http.put(`users/${this.userInfo.id}/role`,{
        rid:this.selectedRoleId
      })
      if(res.meta.status !== 200){
        return this.$message.error('更新角色失败')
      }
      this.$message.success('更新角色成功')
      this.getUserList()
      this.setRoleDialogVisible = false
    },
    //监听分配角色对话框的关闭
    setRoleDialogClosed(){
      this.selectedRoleId = ''
    }
  }
}
</script>

<style lang="less" scoped>
.el-table{
  height: 70vh;
  
}
.el-pagination{
  /* position: absolute;
  bottom: 1vh; */
  // margin-top: 1vh;
  height: 10vh;
}
</style>